A125761 - cp's OEIS frontend

A125761 Triangle read by rows: T(n,k) (n>=1) gives the number of n-indecomposable polyominoes with k cells (k >= 1).

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	1
8	1
9	2
10	5
11	12
12	6
13	5
14	1
15	1
16	1
17	1
18	2
19	5
20	12
21	35
22	108
23	73
24	76
25	80
26	25
27	15
28	15
29	1
30	1
31	2
32	5
33	12
34	35
35	108
36	369
37	1285
38	1044
39	1475
40	2205
41	2643
42	983
43	1050
44	1208
45	958
46	1
47	1
48	2
49	5
50	12
51	35
52	108
53	369
54	1285
55	4655
56	17073
57	15980
58	26548
59	48766
60	79579
61	99860
62	45898
63	60433
64	89890
65	109424
66	84312
67	1
68	1
69	2
70	5
71	12
72	35
73	108
74	369
75	1285
76	4655
77	17073
78	63600
79	238591
80	245955
81	458397
82	948201
83	1857965
84	3160371
85	4153971
86	2217787
87	3402761
88	5855953
89	9067535
90	11402651
91	9170285
92	1
93	1
94	2
95	5
96	12
97	35
98	108
99	369
100	1285
101	4655
102	17073
103	63600
104	238591
105	901971
106	3426576
107	3807508
108	7710844
109	17354771
110	37983463

[1, 1, 1, 2, 1, 1, 1, 1, 2, 5, 12, 6, 5, 1, 1, 1, 1, 2, 5, 12, 35, 108, 73, 76, 80, 25, 15, 15, 1, 1, 2, 5, 12, 35, 108, 369, 1285, 1044, 1475, 2205, 2643, 983, 1050, 1208, 958, 1, 1, 2, 5, 12, 35, 108, 369, 1285, 4655, 17073, 15980, 26548, 48766, 79579, 99860, 45898, 60433, 89890, 109424, 84312, 1, 1, 2, 5, 12, 35, 108, 369, 1285, 4655, 17073, 63600, 238591, 245955, 458397, 948201, 1857965, 3160371, 4153971, 2217787, 3402761, 5855953, 9067535, 11402651, 9170285, 1, 1, 2, 5, 12, 35, 108, 369, 1285, 4655, 17073, 63600, 238591, 901971, 3426576, 3807508, 7710844, 17354771, 37983463]

cp's OEIS Frontend

A125761 Triangle read by rows: T(n,k) (n>=1) gives the number of n-indecomposable polyominoes with k cells (k >= 1).

Table of values

List of values